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Mathematics 9 Online
OpenStudy (anonymous):

The lab table has a perimeter of 214 inches. The length is 13 inches less than 3 times the width. How many inches long is the table?

OpenStudy (anonymous):

P = 214 = 2(3w - 13) + 2w

OpenStudy (anonymous):

Solve that equation for "w". Then L = 3w - 13

OpenStudy (anonymous):

The factor of "2" in front of the 2 terms on the right is due to adding all four sides.

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